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Исследование системы Cu2ZnSnS4–Cu2ZnSnSe4

Исследование системы Cu2ZnSnS4–Cu2ZnSnSe4

Abstract

Направленной кристаллизацией расплава (вертикальный метод Бриджмена) выращены кристаллы соединений Cu2ZnSnS4, Cu2ZnSnSe4 и твердых растворов Cu2ZnSnS4хSe4(1-х). Методом микрорентгеноспектрального анализа определен состав полученных кристаллов, рентгеновским методом – их структура. Установлено, что как исходные соединения Cu2ZnSnS4, Cu2ZnSnSe4, так и твердые растворы на их основе кристаллизуются в тетрагональной структуре. Параметры элементарной ячейки а и с изменяются линейно в соответствии с законом Вегарда. Методом ДТА построена диаграмма состояния системы Cu2ZnSnS4 – Cu2ZnSnSe4, которая характеризуется небольшим интервалом кристаллизации, и ее можно отнести к первому типу по классификации Розебома. Измерена микротвердость и плотность указанных кристаллов. Установлено, что микротвердость с составом х изменятся с максимумом, плотность – линейно.Crystals of Cu2ZnSnS4, Cu2ZnSnSe4 compounds and Cu2ZnSnS4хSe4(1-х) solid solutions have been grown by directional crystallization of the melt. The composition of the grown crystals was determined by X-ray microprobe analyses, XRD was used for determination of their structure. It was established, that both starting compounds Cu2ZnSnS4, Cu2ZnSnSe4 and Cu2ZnSnS4хSe4(1-х) solid solutions on their base are crystallized in tetragonal structure. Unit cell parameters a and c change linearly in accordance with Vegad’s law. State diagram was built using DTA method, which are characterized with small temperature interval of crystallization and it can be attributed to the firs type on Rozebom’s classification. Microhardness and density of the indicated crystals have been measured. It has been established, that microhardness changes with maxima on composition x, density – linearly.

Keywords

плотность, микротвердость, кристаллы, параметры элементарной ячейки, диаграмма состояния, структура, доклады БГУИР

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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